公开(公告)号：US08295394B1

公开(公告)日：2012-10-23

申请号：US12257292

申请日：2008-10-23

申请人： Adric Q. Broadwell ,  Armando C. Cova ,  Frederic Roger ,  Qian Yu

发明人： Adric Q. Broadwell ,  Armando C. Cova ,  Frederic Roger ,  Qian Yu

IPC分类号： H04K1/02

CPC分类号： H03F1/3247 ,  H03F2201/3224

摘要： A performance monitor for generating a digital error signal based upon an RF input signal and an amplified RF output signal is provided. The monitor includes: a first analog-to-digital converter operable to digitize an in-phase (I) and a quadrature-phase (Q) version of the RF input signal responsive to a first clock signal to provide a first digital I signal and a first digital Q signal; a second analog-to-digital converter operable to digitize an in-phase (I) and a quadrature-phase version of the amplified RF output signal responsive to a second clock signal to provide a second digital I signal and a second digital Q signal; a first adaptive delay filter to delay the first digital I signal and the first digital Q signal to provide a first delayed complex signal according to a first delay; a second adaptive filter to delay the second digital I signal and the second digital Q signals to provide a second delayed complex signal according to a second delay; a complex gain matching adder operable to add a complex gain matching factor to a selected one of the delayed complex signals to provide a gain matched complex signal; and an adder to add the gain matched complex signal to a remaining one of the first and second delayed complex signals to provide the digital error signal.

摘要翻译： 提供了一种用于基于RF输入信号和放大的RF输出信号产生数字误差信号的性能监视器。 监视器包括：第一模数转换器，用于响应于第一时钟信号数字化RF输入信号的同相（I）和正交相位（Q）版本，以提供第一数字I信号和 第一数字Q信号; 第二模数转换器，用于响应于第二时钟信号数字化放大的RF输出信号的同相（I）和正交相位版本，以提供第二数字I信号和第二数字Q信号; 第一自适应延迟滤波器，用于延迟第一数字I信号和第一数字Q信号，以根据第一延迟提供第一延迟复信号; 第二自适应滤波器，用于延迟所述第二数字I信号和所述第二数字Q信号，以根据第二延迟提供第二延迟复信号; 复增益匹配加法器，用于将复增益匹配因子添加到所选延迟复信号中的一个以提供增益匹配复信号; 以及加法器，用于将增益匹配复信号与第一和第二延迟复数信号中的剩余的一个相加，以提供数字误差信号。

公开(公告)号：US20120120884A1

公开(公告)日：2012-05-17

申请号：US13119796

申请日：2009-08-31

申请人： Qian Yu ,  Masayuki Hoshino ,  Daichi Imamura ,  Kenichi Miyoshi ,  Megumi Ichikawa

发明人： Qian Yu ,  Masayuki Hoshino ,  Daichi Imamura ,  Kenichi Miyoshi ,  Megumi Ichikawa

IPC分类号： H04W74/04 ,  H04W52/04 ,  H04W72/04

CPC分类号： H04B7/0426 ,  H04B7/0452 ,  H04B7/0663

摘要： Interference between users in an MU-MIMO system is minimized by effective precoding, without increasing an overhead of control data. In a wireless communication system in which multiplex communication is possible between multiple UE1, UE2, and BS, a channel estimation and precoding selection unit 539 in BS estimates channels from the respective UE1, UE2 to the BS, determines a precoding matrix P from a projection matrix to make the two channel response matrices orthogonal or nearly orthogonal, and feeds back the precoding matrix P to UE2, and executes precoding on only UE2 of the two. A precoding unit 524 in the UE2 employs the precoding matrix P that has been notified to perform precoding of a data stream, and sends the precoded data stream to the BS.

摘要翻译： 在MU-MIMO系统中的用户之间的干扰通过有效的预编码被最小化，而不增加控制数据的开销。 在可以在多个UE1，UE2和BS之间进行复用通信的无线通信系统中，BS中的信道估计和预编码选择单元539估计来自相应UE1，UE2到BS的信道，从投影中确定预编码矩阵P 矩阵，以使两个信道响应矩阵正交或接近正交，并且将预编码矩阵P反馈到UE2，并且仅在两者的UE2上执行预编码。 UE2中的预编码单元524采用已经通知的预编码矩阵P来执行数据流的预编码，并将预编码的数据流发送到BS。

公开(公告)号：US08145150B1

公开(公告)日：2012-03-27

申请号：US12340032

申请日：2008-12-19

申请人： Qian Yu ,  Abhijit G. Shanbhag ,  Yan Wang

发明人： Qian Yu ,  Abhijit G. Shanbhag ,  Yan Wang

IPC分类号： H04B1/04

CPC分类号： H03F1/3241 ,  H03F1/3247 ,  H04B17/13

摘要： A mixed-signal adaptive integrated circuit may comprise a primary function circuit, a digitally controlled analog sub-system cooperatively connected with the primary function circuit, and an on-chip signal analyzer. The on-chip signal analyzer may be arranged to analyze RF signals. The signal analyzer may comprise at least one multiplexor for selecting selected RF signals for comparison and analysis, and may comprise a digital signal processor (DSP) for analyzing the selected RF signals and adjusting at least one operational parameter of the digitally controlled analog sub-system responsive to the analysis.

摘要翻译： 混合信号自适应集成电路可以包括与主要功能电路协作连接的主要功能电路，数字控制的模拟子系统和片上信号分析器。 片上信号分析器可以被布置成分析RF信号。 信号分析器可以包括用于选择用于比较和分析的所选RF信号的至少一个多路复用器，并且可以包括用于分析所选择的RF信号并调整数字控制的模拟子系统的至少一个操作参数的数字信号处理器（DSP） 响应分析。

公开(公告)号：US07796743B2

公开(公告)日：2010-09-14

申请号：US11793127

申请日：2005-12-19

申请人： Yong Song ,  Qian Yu ,  Junsong Yi ,  Bing Zhang

发明人： Yong Song ,  Qian Yu ,  Junsong Yi ,  Bing Zhang

IPC分类号： H04M3/42 ,  H04M7/00

CPC分类号： H04M3/42102 ,  H04M3/42017 ,  H04M2207/12

摘要： A method for implementing a ring back tone, including: receiving, by a first Service Control Point, an intelligent service request triggered by a Service Switching Point, based on a call of a calling party; obtaining personal ring back tone information of a called party and/or group ring back tone information of a group which the called party belongs to; acquiring first ring back tone information according to the personal ring back tone information and/or the group ring back tone information delivering a connect message containing the first ring back tone information to the Service Switching Point the connect message being used to instruct the Service Switching Point to connect the call to an Advanced Intelligent Peripheral for playing the ring back tone to the calling party according to the first ring back tone information.

摘要翻译： 一种用于实现回铃音的方法，包括：基于呼叫方的呼叫，由第一服务控制点接收由服务交换点触发的智能服务请求; 获取被叫方所属组的被叫方和/或组回铃音信息的个人回铃音信息; 根据个人回铃音信息和/或将包含第一回铃音信息的连接消息传送到服务交换点的组回铃音信息，获取第一回铃音信息，该连接消息用于指示服务交换点 将呼叫连接到高级智能外设，根据第一个回铃音信息向主叫方播放回铃音。

公开(公告)号：US20100013935A1

公开(公告)日：2010-01-21

申请号：US11761171

申请日：2007-06-11

申请人： Yunqian Ma ,  Qian Yu ,  Isaac Cohen

发明人： Yunqian Ma ,  Qian Yu ,  Isaac Cohen

IPC分类号： H04N5/225

CPC分类号： G06K9/32 ,  G06K9/00771 ,  G06T7/277 ,  G06T2207/30241

摘要： A tracking system having a video detector for associating observations of blobs and objects and deriving objects' or blobs' paths. Hypotheses may be computed by the system for merging, splitting and reacquisition of the observations. There may be objects tracked among the observations, and best paths selected as trajectories of corresponding objects. The observations may be placed in a sliding window containing a series of observations inferred from a collection of frames for improving the accuracy of the tracking (or data association). The processed observations and data may be represented graphically.

摘要翻译： 跟踪系统具有视频检测器，用于将斑点和对象的观察结果相关联并导出对象或斑点的路径。 系统可以通过系统计算假设来合并，分解和重新获取观测值。 在观察中可能会跟踪对象，并选择最佳路径作为相应对象的轨迹。 观察结果可以放置在滑动窗口中，其包含从帧集合推断的一系列观察结果，用于提高跟踪（或数据关联）的准确性。 经处理的观察和数据可以用图形表示。

公开(公告)号：US07627107B2

公开(公告)日：2009-12-01

申请号：US11667794

申请日：2005-11-10

申请人： Qian Yu ,  Junsong Yi

发明人： Qian Yu ,  Junsong Yi

IPC分类号： H04M7/00 ,  H04M3/42

CPC分类号： H04M3/4228 ,  H04L12/66 ,  H04L41/5054 ,  H04M2207/12 ,  H04Q3/0045

摘要： A method for invoking the service in the intelligent network includes realizing the communication between the different service control points in the intelligent network and providing various intelligent service to the users by the cooperation between the communicating service control points according to the service request information of the user. The method for invoking the service in the intelligent network of the present invention enables the process of invoking the intelligent service to have better application and extensibility. The process of various service invoking needn't limit to the service control point of the same manufacture.

摘要翻译： 一种在智能网中调用业务的方法，包括实现智能网中不同业务控制点之间的通信，并根据用户业务请求信息，通过通信业务控制点之间的协作向用户提供各种智能业务 。 在本发明的智能网络中调用服务的方法使得调用智能服务的过程具有更好的应用和可扩展性。 各种服务调用的过程不需要限制到同一制造商的服务控制点。

公开(公告)号：US07627031B2

公开(公告)日：2009-12-01

申请号：US11186241

申请日：2005-07-21

申请人： Qian Yu ,  Venugopal Balasubramonian ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Abhijit Phanse ,  Abhijit G. Shanbhag ,  Edem Ibragimov ,  Fabian Giroud

发明人： Qian Yu ,  Venugopal Balasubramonian ,  Jishnu Bhattacharjee ,  Debanjan Mukherjee ,  Abhijit Phanse ,  Abhijit G. Shanbhag ,  Edem Ibragimov ,  Fabian Giroud

IPC分类号： H03H7/30

CPC分类号： H04L7/0062 ,  H04L7/0029 ,  H04L25/03057 ,  H04L2025/03503

摘要： An apparatus and method for adaptively introducing a compensating signal latency related to a signal latency of a data symbol decision circuit. Adaptive timing control circuitry, including an interpolating mixer implemented as a tapped delay line with correlated tap coefficients, introduces a latency adaptively and substantially matching the latency of the data decision circuit for use within an adaptive equalizer, thereby minimizing the mean-squared error of such decision circuit. This adaptive latency is used in generating the feedback error signal which, in turn, can be used by the feedforward equalizer for dynamically adjusting its adaptive filter tap coefficients.

摘要翻译： 一种用于自适应地引入与数据符号判定电路的信号等待时间相关的补偿信号延迟的装置和方法。 自适应定时控制电路，包括实现为具有相关抽头系数的抽头延迟线的内插混频器，自适应地和基本上匹配数据判决电路的等待时间以在自适应均衡器内使用，从而最小化这样的均方误差 决策电路。 该自适应等待时间用于产生反馈误差信号，反馈误差信号又可由前馈均衡器用于动态调整其自适应滤波器抽头系数。

公开(公告)号：US07394849B2

公开(公告)日：2008-07-01

申请号：US11539810

申请日：2006-10-09

申请人： Edem Ibragimov ,  Qian Yu ,  Prashant Choudhary

发明人： Edem Ibragimov ,  Qian Yu ,  Prashant Choudhary

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03057 ,  H03H21/0012 ,  H03H2021/0096 ,  H04L25/03063 ,  H04L25/0307 ,  H04L2025/0349 ,  H04L2025/03509 ,  H04L2025/03611

摘要： A decision feedback equalizer with dynamic feedback control for use in an adaptive signal equalizer. Timing within the decision feedback loop is dynamically controlled to optimize recovery of the data signal by the output signal slicer. The dynamic timing is controlled by a signal formed as a combination of feedback and feedforward signals. The feedback signal is an error signal related to a difference between pre-slicer and post-slicer signals. The feedforward signal is formed by differentiating and delaying the incoming data signal.

摘要翻译： 具有用于自适应信号均衡器的动态反馈控制的判决反馈均衡器。 动态控制决策反馈环路内的定时，以优化输出信号限幅器对数据信号的恢复。 动态定时由形成为反馈和前馈信号的组合的信号控制。 反馈信号是与预切片器和后切片器信号之间的差异相关的误差信号。 前馈信号通过差分和延迟输入数据信号来形成。

公开(公告)号：US20080038000A1

公开(公告)日：2008-02-14

申请号：US11735859

申请日：2007-04-16

申请人： Qian Yu ,  Lianshan Yan ,  Alan Willner

发明人： Qian Yu ,  Lianshan Yan ,  Alan Willner

IPC分类号： H04B10/04 ,  H04B10/06

CPC分类号： H04B10/2572

摘要： A multi-wavelength optical signal copropagates through a fiber-optic communication link with a continuous-wave ancillary wavelength having an unknown state of polarization (SOP), which is scrambled periodically in time. The instantaneous value of polarization dependent loss (PDL) in the ancillary wavelength is monitored in real time, and is used as an error signal to adjust at least one polarization controller. Polarization scrambling is performed by periodically changing the SOP with time, such that the polarization-scrambled optical signal covers approximately an entire Poincaré sphere surface, preferably uniformly, during each time period. At an optical node between fibers, an adjustable PDL compensator contains two ordered pairs each consisting of one polarization controller and one optical element introducing fixed PDL.

摘要翻译： 多波长光信号通过具有未知极化状态（SOP）的连续波辅助波长的光纤通信链路共同繁殖，其周期性地被加扰。 在实时监测辅助波长偏振相关损耗（PDL）的瞬时值，并用作误差信号来调节至少一个偏振控制器。 通过周期性地改变SOP随时间进行极化加扰，使得偏振加扰的光信号在每个时间段期间大致整个Poincaré球面，优选均匀地覆盖。 在光纤之间的光节点处，可调PDL补偿器包含两个有序对，每对由一个偏振控制器和一个引入固定PDL的光学元件组成。

公开(公告)号：US20080018362A1

公开(公告)日：2008-01-24

申请号：US11548696

申请日：2006-10-11

申请人： Ta Yu ,  Qian Yu

发明人： Ta Yu ,  Qian Yu

IPC分类号： H03K5/22

CPC分类号： H03K19/018528 ,  H03K5/003 ,  H03K5/2472

摘要： A design for a wide input common mode voltage comparator is provided which reduces the delay between outputs from component comparators. The wide input common mode voltage comparator includes a first comparator configured to receive a differential input. The first comparator is further configured to accommodate high common mode voltages. The wide input common mode voltage comparator further includes a second comparator configured to receive the differential input. The first comparator is further configured to accommodate low common mode voltages. Additionally, the threshold voltages of the active devices within the comparator are between −100 to 100 mV. Furthermore, the wide input common mode voltage comparator includes a summing circuit configured to receive the outputs of the first and second comparators to create a single-ended output.

摘要翻译： 提供了一种用于宽输入共模电压比较器的设计，其减少了来自元件比较器的输出之间的延迟。 宽输入共模电压比较器包括被配置为接收差分输入的第一比较器。 第一比较器还被配置为适应高共模电压。 宽输入共模电压比较器还包括被配置为接收差分输入的第二比较器。 第一比较器还被配置为适应低共模电压。 此外，比较器内有源器件的阈值电压在-100至100 mV之间。 此外，宽输入共模电压比较器包括被配置为接收第一和第二比较器的输出以产生单端输出的求和电路。